3
ôÁgö  ã               @   s0   d dl Z d dlZddlmZ G dd„ deƒZdS )é    Né   )ÚProbingStatec               @   sn   e Zd ZdZddd„Zdd„ Zedd„ ƒZd	d
„ Zedd„ ƒZ	dd„ Z
edd„ ƒZedd„ ƒZedd„ ƒZdS )ÚCharSetProbergffffffî?Nc             C   s   d | _ || _tjtƒ| _d S )N)Ú_stateÚlang_filterÚloggingÚ	getLoggerÚ__name__Úlogger)Úselfr   © r   ú_/var/www/tester-filtro-web/env/lib/python3.6/site-packages/pip/_vendor/chardet/charsetprober.pyÚ__init__'   s    zCharSetProber.__init__c             C   s   t j| _d S )N)r   Ú	DETECTINGr   )r   r   r   r   Úreset,   s    zCharSetProber.resetc             C   s   d S )Nr   )r   r   r   r   Úcharset_name/   s    zCharSetProber.charset_namec             C   s   d S )Nr   )r   Úbufr   r   r   Úfeed3   s    zCharSetProber.feedc             C   s   | j S )N)r   )r   r   r   r   Ústate6   s    zCharSetProber.statec             C   s   dS )Ng        r   )r   r   r   r   Úget_confidence:   s    zCharSetProber.get_confidencec             C   s   t jdd| ƒ} | S )Ns   ([ -])+ó    )ÚreÚsub)r   r   r   r   Úfilter_high_byte_only=   s    z#CharSetProber.filter_high_byte_onlyc             C   sb   t ƒ }tjd| ƒ}xJ|D ]B}|j|dd… ƒ |dd… }|jƒ  rP|dk rPd}|j|ƒ qW |S )u9  
        We define three types of bytes:
        alphabet: english alphabets [a-zA-Z]
        international: international characters [Â€-Ã¿]
        marker: everything else [^a-zA-ZÂ€-Ã¿]

        The input buffer can be thought to contain a series of words delimited
        by markers. This function works to filter all words that contain at
        least one international character. All contiguous sequences of markers
        are replaced by a single space ascii character.

        This filter applies to all scripts which do not use English characters.
        s%   [a-zA-Z]*[€-ÿ]+[a-zA-Z]*[^a-zA-Z€-ÿ]?Nr   ó   €r   éÿÿÿÿr   )Ú	bytearrayr   ÚfindallÚextendÚisalpha)r   ÚfilteredÚwordsÚwordZ	last_charr   r   r   Úfilter_international_wordsB   s    
z(CharSetProber.filter_international_wordsc             C   s¬   t ƒ }d}d}x‚tt| ƒƒD ]r}| ||d … }|dkr>d}n|dkrJd}|dk r|jƒ  r||kr†| r†|j| ||… ƒ |jdƒ |d }qW |s¨|j| |d	… ƒ |S )
aÈ  
        Returns a copy of ``buf`` that retains only the sequences of English
        alphabet and high byte characters that are not between <> characters.
        Also retains English alphabet and high byte characters immediately
        before occurrences of >.

        This filter can be applied to all scripts which contain both English
        characters and extended ASCII characters, but is currently only used by
        ``Latin1Prober``.
        Fr   r   ó   >ó   <Tr   r   N)r   ÚrangeÚlenr   r   )r   r    Zin_tagÚprevÚcurrZbuf_charr   r   r   Úfilter_with_english_lettersg   s"    
z)CharSetProber.filter_with_english_letters)N)r	   Ú
__module__Ú__qualname__ZSHORTCUT_THRESHOLDr   r   Úpropertyr   r   r   r   Ústaticmethodr   r#   r*   r   r   r   r   r   #   s   
%r   )r   r   Úenumsr   Úobjectr   r   r   r   r   Ú<module>   s   